For Bally Truck Stop, there are two banks of 3 targets on the playfield - one bank on the left side and one on the right. In each bank, two targets are linked together via wiring, and one is independently wired.
The single target that is independently wired works and scores / acknowledges the diamond when hit; however in each bank, the two targets that are linked together do not score or acknowledge when hit.
I looked at the connections and the solder was bad (they broke off) so I soldered them (this was the yellow wire). however there is still no response when hit on both banks.
Any suggestions? I cannot understand the wiring diagram well enough to troubleshoot and could use some assistance. I am enclosing a picture for reference
Talk about solid-state and DMD pinball machines
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